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miv72 [106K]
3 years ago
7

What is the advantage and disadvantage of drug abuse​

Biology
1 answer:
11111nata11111 [884]3 years ago
5 0
There are danger and you call someone to help you
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Someone plz hurry up and answer!!!
Korvikt [17]

The answer is C. The energy of the acacia tree is passed on to the impala.

6 0
3 years ago
Based on your observations, which way does earth rotate—from east to west, or west to east? Explain your answer.
JulijaS [17]

Based on my observations, the earth rotates from west to east about the axis of rotation. The counter-clockwise rotation of the earth is as viewed from the North Pole star Polaris.

My observations supporting the counter-clockwise rotation of the earth are:

  • The Sun rises in the east and sets in the west.
  • All celestial objects including the stars and the moon rise in the east and set in the west.

The rotation is the result of the strong geomagnetic field of the earth. It is also responsible for the formation of day and night on the planet.

Learn more about the Rotation of the earth:

brainly.com/question/24246687

6 0
1 year ago
Why is the sarcoplasmic reticulum. How does it aid in the stimulation of muscle contraction?
Mandarinka [93]
Activation of muscle contraction could be a speedy event that's initiated by electrical activity within the surface membrane and transversal (T) tubules. This can be followed by unharness of metal<span> from the inner membrane system, the sarcoplasmic reticulum.
</span>Nervous stimulation causes a depolarization<span> of the muscle membrane (sarcolemma) </span>that<span> triggers </span>the discharge<span> of </span>calcium<span> ions from the sarcoplasmic reticulum.</span>
8 0
3 years ago
Read 2 more answers
Which of these are components of blood? (Select all that apply.)
asambeis [7]

Answer:

oxygen gas

red blood cells

platelets

Explanation:

» <u>Concepts</u>

Your blood is composed of four main things: <u>red blood cells</u> (that transport <u>oxygen</u>), <u>white blood cells</u>, <u>platelets</u>, and <u>plasma</u>. Red blood cells transports oxygen and takes out CO2, white blood cells fight bacteria and viruses, and platelets clot together to stop bleeding.

<u>Bile</u> is a fluid that is produced by the liver and stored in the gallbladder, so it's not a main component of blood.

7 0
2 years ago
Read 2 more answers
How many kcal does a food item containing 20 grams of carbohydrate provide?
NISA [10]

Answer:

b. 80

Explanation:

There are about 4 calories per gram of carbohydrates. As such, if 20 grams of carbohydrate are provided, simply multiply 4 calories per gram with the total amount of grams of carbohydrates.

<em>20 grams of carbohydrates</em> x <em>4 calories per gram of carbohydrates</em> = 80 calories total.

Learn more, here:

brainly.com/question/13584986

3 0
2 years ago
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